Atomizer Heater Resistance Tracking for Precise Temperature Control

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Solution Overview

Problem

The change in initial resistance value of the heating element in electronic atomization apparatuses affects the temperature control and user experience, as different atomizers have varying initial resistance values and default values become inaccurate over time.

Innovation Solution

The apparatus detects the current resistance value of the heating element upon inhalation, compares it with a reference value, and updates the reference value if necessary, using a processor to control power supply based on the updated resistance value for precise temperature regulation and condition detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a default initial resistance value is used for temperature control and adverse condition detection, then the device structure remains simple, but the temperature control precision and user experience deteriorate as use time increases

Engineering Contradiction:
Improvedevice structureVSAvoidtemperature control precision
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The system performs preliminary detection of the current resistance value when the atomization apparatus is first inhaled, before actual atomization begins. This preliminary action allows the system to obtain the accurate initial resistance value of the heating element and store it as reference data, ensuring subsequent temperature control uses precise baseline data rather than default values

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously compares the current resistance value during operation with the stored reference resistance value, and when the difference exceeds a threshold, triggers an update of the reference value. This feedback mechanism ensures the reference resistance value remains accurate throughout the product lifecycle, maintaining temperature control precision without requiring complex hardware

Inventive Principle:
Principle #23Feedback

2Measurement precision

If the reference resistance value is continuously updated, then temperature control precision is maintained, but the control system complexity increases

Engineering Contradiction:
Improvetemperature control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary detection of the current resistance value when the atomization apparatus is first inhaled, before actual atomization begins. This preliminary action allows the system to obtain the accurate initial resistance value of the heating element and store it as reference data, ensuring subsequent temperature control uses precise baseline data rather than default values

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously compares the current resistance value during operation with the stored reference resistance value, and when the difference exceeds a threshold, triggers an update of the reference value. This feedback mechanism ensures the reference resistance value remains accurate throughout the product lifecycle, maintaining temperature control precision without requiring complex hardware

Inventive Principle:
Principle #23Feedback

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This method ensures accurate temperature control and early detection of adverse conditions, enhancing user experience by adapting to changes in resistance values and maintaining consistent performance.

Implementation Method 1

a heating element configured to heat and atomize an aerosol-forming substrate to generate an aerosol

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

detecting, when obtaining a start signal indicating that the electronic atomization apparatus is inhaled, a current resistance value of the heating element

Methodology Applied
Scientific EffectElectrical resistance: Electrical Resistance

Data Source

PatentEP4678037A1Electronic atomization apparatus and control method therefor
Publication Date: 2026.01.14 SHENZHEN FIRST UNION TECH CO LTD
  • EP4678037A1 patent drawingFigure 1
  • EP4678037A1 patent drawingFigure 2
  • EP4678037A1 patent drawingFigure 3~4

AI summary

An electronic atomization apparatus and a control method therefor. The electronic atomization apparatus comprises a heating element (14) for heating and atomizing an aerosol forming substrate, wherein the heating element (14) has a reference resistance value. The control method comprises: upon acquiring a start signal of an electronic atomization apparatus being vaped, measuring the current resistance value of a heating element (14); comparing the current resistance value of the heating element (14) with a reference resistance value; and according to the numerical relationship between the current resistance value of the heating element (14) and the reference resistance value, determining whether to update the reference resistance value. In the apparatus and method, the reference resistance value of the heating element (14) is updated according to the numerical relationship between the measured resistance value of the heating element (14) and the reference resistance value of the heating element (14), which is conducive to measuring the temperature of the heating element (14) at high precision or indicating an adverse condition at the heating element (14), thereby improving the vaping experience of a user.